Pulse Code Modulation & Demodulation Trainer
Model No. HV-EXP2215
Pulse Code Modulation & Demodulation Trainer For Electrical Lab Training Experimental training boardhas been designed specifically to study pulse code modulation & demodulation. In the basic PCM modulator the base band analog signal is covered into 8bit digital format using an ADC. The sampling rate is set at 2.5 KHz. The 8bit parallel data from ADC is converted into serial bit stream at 33 kbps.The PCM demodulator receives the serial data, converts it into 8bit parallel format. The analog to digital converter transforms the 8bit parallel data into analog level. Thus the output of DAC is astepped approximation of input signal. Alow pass filter is used to recover the analog signal. Practical experience on this board carries great educative value for science and engineering students.Object: To study pulse code modulation & demodulation. Features: The board consists of the following built-in parts : 5V D.C. at 100mA IC regulated power supply internally connected. ± 15V D.C. at 100mA IC regulated power supply internally connected. +5V D.C. to -9V Variable D.C. output. Built in TTL Clock Generator 33 KHz. Modulating Signal Generator 15Hz to 300Hz. PCM Encoder. PCM Decoder. Data display with LED’s Adequate no. of other electronic components. Mains ON/OFF switch, fuse and jewel light. The unit is operative on 230V ±10% at 50Hz A.C. Mains. Adequate no. of patch cords stackable from rear both ends 4mm spring loaded plug length ½ metre. Good Quality, reliable terminal/sockets are provided at appropriate places on panel for connections /observation of waveforms. Strongly supported by detailed Operating Instructions, giving details of Object, Theory, Design procedures, Report Suggestionsand Book References. Weight :3Kg. (Approx.) Dimension :W340 xH110 xD210 Other Apparatus Required: Cathode Ray Oscilloscope 20MHz.....
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